http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2509088-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c461c9f7be160c4092e19730302e9f71 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S526-943 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65916 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-65912 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2420-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F7-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-6592 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-646 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-02 |
| filingDate | 2008-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be02aed319f04220196464594006f430 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ec96bfadc78c48768a9eb354beb136a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3575e2f7faa3a0e1f95d438b3da44c7c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78b78b8ff3cb6721237bc26b3342d141 |
| publicationDate | 2014-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2509088-C2 |
| titleOfInvention | Polymerisation catalysts, methods for production and use thereof and polyolefin products obtained using same |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to catalyst systems for polymerising olefins, which contain a catalytic, high-molecular weight compound and a catalytic, low-molecular weight compound, a method for production thereof, a method of polymerising olefins, an ethylene polymer and an article made from the ethylene polymer. The high-molecular weight catalysts include metallocene catalysts. The second catalyst component has formula I (values of radicals are given in the claim). The second catalyst component is present in an amount of 0.001-5.0 mol % with respect to said first catalyst component. Said first catalyst component enables to obtain a polymer with weight-average molecular weight (Mw) of 40000-200000 g/mol, and the second catalyst component enables to obtain a polymer with Mw higher than 1000000 g/mol. The obtained ethylene polymer has at least one of the following properties: (a) melt strength greater than 6*MI -0.6675 , (b) ratio of longitudinal viscosity, measured at rate of extension of 1 s -1 , 190°C and exposure time of 4 s, to viscosity predicted based on linear viscoelastic properties for the same temperature and exposure time, greater than 3; (c) activation energy (Ea) less than 7 kcal/mol/K; (d) ratio Mz/Mw greater than the ratio Mw/Mn, where Mz is the z-average molecular weight of said polymer, Mw is the weight-average molecular weight of said polymer, Mn is the number-average molecular weight of said polymer; and (e) Van Gurp-Palmen plot, having a positive slope and having a maximum, wherein the Van Gurp-Palmen plot is a curve of phase shift versus the magnitude of the complex shear modulus, determined based on dynamic rheological properties, more specifically based on frequency sweep in the range of 0.01-100 rad/s at 190°C. n EFFECT: obtaining bimodal compositions which are easy to process and have improved properties. n 28 cl, 7 dwg, 12 tbl, 44 ex |
| priorityDate | 2007-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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